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From "Chuck Rolke (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (QPID-4378) C++ Broker deletes dynamic bridges too aggressively
Date Thu, 18 Oct 2012 20:42:02 GMT

     [ https://issues.apache.org/jira/browse/QPID-4378?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chuck Rolke resolved QPID-4378.
-------------------------------

       Resolution: Fixed
    Fix Version/s: 0.19

Fix with r1399837.
Reviewed by Ted Ross.
                
> C++ Broker deletes dynamic bridges too aggressively
> ---------------------------------------------------
>
>                 Key: QPID-4378
>                 URL: https://issues.apache.org/jira/browse/QPID-4378
>             Project: Qpid
>          Issue Type: Bug
>          Components: C++ Broker
>    Affects Versions: 0.18
>         Environment: C++ Broker
>            Reporter: Chuck Rolke
>            Assignee: Chuck Rolke
>             Fix For: 0.19
>
>
> If a dynamic bridge's session has been detached while attempting to propagate a binding
event, the broker will delete the bridge.  Normally, a detached bridge session will be automatically
recovered during the maintenance periodic if possible. Needless to say, auto-deleting the
bridge upon a session error prevents this normal recovery path from occurring.
> This event can occur in a production system during broker startup/federation and also
during source broker recovery since there is a potential race condition between creation of
the source exchange and the creation of the dynamic bridge on the destination broker.
> Log Message:
> Sep 30 19:41:40 localhost qpidd[10497]: 2012-09-30 19:41:40 [Broker] error Cannot propagate
binding for dynamic bridge as session has been detached, deleting dynamic bridge
> Steps to reproduce:
> # src broker: localhost:5801
> # dst broker: localhost:5803
> #
> # Create exchange in dst broker
> #
> qpid-config -b localhost:5803 add exchange topic fed.topic
> #
> # create dynamic bridge
> #
> qpid-route dynamic add localhost:5803 localhost:5801 fed.topic
> #
> # create dst queue as bind target
> #
> qpid-config -b localhost:5803 add queue fed.topic.queue
> #
> # create binding on dest exchange
> #
> qpid-config -b localhost:5803   bind fed.topic fed.topic.queue
> qpid-config -b localhost:5803 unbind fed.topic fed.topic.queue
> # The unbind should not delete the bridge.

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